40041031 has 4 divisors (see below), whose sum is σ = 40109832. Its totient is φ = 39972232.

The previous prime is 40041007. The next prime is 40041073. The reversal of 40041031 is 13014004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40041031 - 2¹¹ = 40038983 is a prime.

It is a super-2 number, since 2×40041031² = 3206568327085922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40041931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33520 + ... + 34693.

It is an arithmetic number, because the mean of its divisors is an integer number (10027458).

Almost surely, 2^40041031 is an apocalyptic number.

40041031 is a deficient number, since it is larger than the sum of its proper divisors (68801).

40041031 is an equidigital number, since it uses as much as digits as its factorization.

40041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68800.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40041031 is about 6327.7982742815. The cubic root of 40041031 is about 342.1120860796.

Adding to 40041031 its reverse (13014004), we get a palindrome (53055035).

The spelling of 40041031 in words is "forty million, forty-one thousand, thirty-one".